<!DOCTYPE html>
<style>
div {
  font-family: 'Courier New';
  font-family: 'Ahem';
  border: thin solid black;
  white-space: pre;
  display: inline-block;
  vertical-align: top;
}
.c5 { width: 5.1ch; }
.c6 { width: 6.1ch; }
</style>
<!-- This part contains non spec-conformant behavior due to recent spec change,
     which pass on NG and Edge but not on pre-NG. Commenting out until we can
     test fail-only-pre-NG.
<div class="c5">Lorem<br>Ipsum<br>dollo<br>ABCDE<br>FGHI</div>
<div class="c5">Lorem<br>Ipsum<br>dollo<br>ABCDE<br>FGHI</div>
<div class="c5">Lorem<br><br>Ipsum<br>dollo<br>ABCDE<br>FGHI</div>
<div class="c5">Lorem<br><br>Ipsum<br>dollo<br>ABCDE<br>FGHI</div>
<br>
-->
<div class="c6">Lorem<br>Ipsum<br>dollo<br>ABCDEF<br>GHI</div>
<div class="c6">Lorem<br>Ipsum<br>dollo<br>ABCDEF<br>GHI</div>
<div class="c6">Lorem<br>Ipsum<br>dollo<br>ABCDEF<br>GHI</div>
<div class="c6">Lorem<br>Ipsum<br>dollo<br>ABCDEF<br>GHI</div>
